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  <title>Set the sorting criteria</title>
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  <div id="layout-content"><div id="mysql-xdevapi-collectionfind.sort" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">CollectionFind::sort</h1>
  <p class="verinfo">(No version information available, might only be in Git)</p><p class="refpurpose"><span class="refname">CollectionFind::sort</span> &mdash; <span class="dc-title">Set the sorting criteria</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-mysql-xdevapi-collectionfind.sort-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><strong>mysql_xdevapi\CollectionFind::sort</strong></span>(<span class="methodparam"><span class="type">string</span> <code class="parameter">$sort_expr</code></span>): <span class="type"><a href="class.mysql-xdevapi-collectionfind.html" class="type mysql_xdevapi\CollectionFind">mysql_xdevapi\CollectionFind</a></span></div>

  <p class="para rdfs-comment">
   Sort the result set by the field selected in the sort_expr argument. The allowed
   orders are ASC (Ascending) or DESC (Descending). This operation is equivalent to the &#039;ORDER BY&#039; SQL operation
   and it follows the same set of rules.
  </p>

 </div>


 <div class="refsect1 parameters" id="refsect1-mysql-xdevapi-collectionfind.sort-parameters">
  <h3 class="title">参数</h3>
  <dl>
   
    <dt>
<code class="parameter">sort_expr</code></dt>

    <dd>

     <p class="para">
      One or more sorting expressions can be provided. The evaluation is from left to right,
      and each expression is separated by a comma.
     </p>
    </dd>

   
  </dl>

 </div>


 <div class="refsect1 returnvalues" id="refsect1-mysql-xdevapi-collectionfind.sort-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   A CollectionFind object that can be used to execute the command, or to add additional operations.
  </p>
 </div>



 <div class="refsect1 examples" id="refsect1-mysql-xdevapi-collectionfind.sort-examples">
  <h3 class="title">范例</h3>
  <div class="example" id="example-1584">
   <p><strong>示例 #1 <span class="function"><strong>mysql_xdevapi\CollectionFind::sort()</strong></span> example</strong></p>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$session&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">mysql_xdevapi</span><span style="color: #007700">\</span><span style="color: #0000BB">getSession</span><span style="color: #007700">(</span><span style="color: #DD0000">"mysqlx://user:password@localhost"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$session</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">sql</span><span style="color: #007700">(</span><span style="color: #DD0000">"DROP&nbsp;DATABASE&nbsp;IF&nbsp;EXISTS&nbsp;addressbook"</span><span style="color: #007700">)-&gt;</span><span style="color: #0000BB">execute</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">$session</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">sql</span><span style="color: #007700">(</span><span style="color: #DD0000">"CREATE&nbsp;DATABASE&nbsp;addressbook"</span><span style="color: #007700">)-&gt;</span><span style="color: #0000BB">execute</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">$schema&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$session</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">getSchema</span><span style="color: #007700">(</span><span style="color: #DD0000">"addressbook"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$create&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$schema</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">createCollection</span><span style="color: #007700">(</span><span style="color: #DD0000">"people"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$create<br />&nbsp;&nbsp;</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">add</span><span style="color: #007700">(</span><span style="color: #DD0000">'{"name":&nbsp;"Alfred",&nbsp;"age":&nbsp;18,&nbsp;"job":&nbsp;"Butler"}'</span><span style="color: #007700">)<br />&nbsp;&nbsp;-&gt;</span><span style="color: #0000BB">execute</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">$create<br />&nbsp;&nbsp;</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">add</span><span style="color: #007700">(</span><span style="color: #DD0000">'{"name":&nbsp;"Reginald",&nbsp;"age":&nbsp;42,&nbsp;"job":&nbsp;"Butler"}'</span><span style="color: #007700">)<br />&nbsp;&nbsp;-&gt;</span><span style="color: #0000BB">execute</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">//&nbsp;...<br /><br /></span><span style="color: #0000BB">$collection&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$schema</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">getCollection</span><span style="color: #007700">(</span><span style="color: #DD0000">"people"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$result&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$collection<br />&nbsp;&nbsp;</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">find</span><span style="color: #007700">()<br />&nbsp;&nbsp;-&gt;</span><span style="color: #0000BB">sort</span><span style="color: #007700">(</span><span style="color: #DD0000">'job&nbsp;desc'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'age&nbsp;asc'</span><span style="color: #007700">)<br />&nbsp;&nbsp;-&gt;</span><span style="color: #0000BB">execute</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">fetchAll</span><span style="color: #007700">());<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
   </div>

   <div class="example-contents"><p>以上例程的输出类似于：</p></div>
   <div class="example-contents screen">
<div class="cdata"><pre>
array(2) {
  [0]=&gt;
  array(4) {
    [&quot;_id&quot;]=&gt;
    string(28) &quot;00005b6b53610000000000000106&quot;
    [&quot;age&quot;]=&gt;
    int(18)
    [&quot;job&quot;]=&gt;
    string(6) &quot;Butler&quot;
    [&quot;name&quot;]=&gt;
    string(6) &quot;Alfred&quot;
  }
  [1]=&gt;
  array(4) {
    [&quot;_id&quot;]=&gt;
    string(28) &quot;00005b6b53610000000000000107&quot;
    [&quot;age&quot;]=&gt;
    int(42)
    [&quot;job&quot;]=&gt;
    string(6) &quot;Butler&quot;
    [&quot;name&quot;]=&gt;
    string(8) &quot;Reginald&quot;
  }
}
</pre></div>
   </div>
  </div>
 </div>


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